Match the columns.

Match List - I with List - II.

Choose the correct answer from the options given below:

Correct option is B

1. DES (Data Encryption Standard): Matches with III. Key size = 56
DES is a symmetric-key algorithm for encryption with a 56-bit key size.
2. AES (Advanced Encryption Standard): Matches with I. Key size = 256
AES is widely used for secure data encryption and can support key sizes of 128, 192, and 256 bits.
3. 3 DES (Triple Data Encryption Standard): Matches with IV. Key size = 168
3DES applies the DES algorithm three times to each data block, effectively creating a 168-bit key size.
4. RSA (Rivest–Shamir–Adleman): Matches with II. Key size = 1024
RSA is an asymmetric encryption technique typically using key sizes of 1024 bits or more.
Correct Answer:
(b) A-III, B-I, C-IV, D-II
Information Booster:
1. DES (Data Encryption Standard):
· Developed by IBM in the 1970s.
· Utilizes a 56-bit symmetric key for encryption.
· Now considered insecure due to advances in computational power.
2. AES (Advanced Encryption Standard):
· Established as a replacement for DES by the National Institute of Standards and Technology (NIST).
· Offers robust security for sensitive data and is widely used in government and private sectors.
3. 3 DES (Triple DES):
· Enhances DES security by encrypting data three times with three keys.
· Effective key size is 168 bits but slower compared to AES.
4. RSA (Rivest–Shamir–Adleman):
· An asymmetric cryptographic algorithm using public and private keys.
· Primarily used for secure data transmission.
Additional Knowledge:
· Key Size and Security:
· Larger key sizes provide stronger encryption but require more computational resources.
· AES is more efficient and secure compared to DES or 3DES.
· Symmetric vs Asymmetric Encryption:
· Symmetric Encryption: Same key for encryption and decryption (e.g., DES, AES).
· Asymmetric Encryption: Uses a pair of public and private keys (e.g., RSA).
· Modern Usage:
· DES is mostly obsolete.
· AES is the standard for modern encryption.
· RSA is popular for digital signatures and key exchange.